Cylindrical roller bearings

Cylindrical roller bearings are available in a wide range of designs, series, variants and sizes. The main design differences are the number of roller rows and the inner/outer ring flanges as well as cage designs and materials.

The bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life. 

Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life. Split bearings are intended primarily for bearing arrangements which are difficult to access, such as crank shafts, where they simplify maintenance and replacements. 

Product types

Single row cylindrical roller bearings

Available in many designs, series and sizes, with a higher axial load carrying capacity and a high speed capability, the major differences between these bearings is cage design and material, and configuration of inner and outer ring flanges. 

High-capacity cylindrical roller bearings

With the high load carrying capacity of full complement bearings and high speed capability of bearings with a cage, these bearings are designed for applications such as industrial and wind turbine gearboxes, and mining equipment. 

Double row cylindrical roller bearings

Because of their second row of rollers, these bearings are suitable for heavy radial loads, along with a higher axial load carrying capacity and a high speed capability.

Four-row cylindrical roller bearings

With a cylindrical or tapered bore, and open or sealed design, these bearings can accommodate very heavy radial loads because of the high number of rollers and are well suited for rolling mill applications with high rolling speeds.

Single row full complement cylindrical roller bearings

As they are not equipped with a cage, these bearings incorporate a maximum number of rollers and are therefore suitable for very heavy radial loads and have an increased radial stiffness. 

Double row full complement cylindrical roller bearings

Also without a cage, the second row of rollers means the design of these bearings can incorporate the maximum number of rollers, making them suitable for very heavy radial loads and increased radial stiffness.

Cooper split cylindrical roller bearings

Primarily intended for difficult-to-access bearing arrangements or for cranked shafts, use split bearings where maintenance or replacement of non-split bearings will be time-consuming and cause long and expensive machine downtime.

Features and benefits

High load carrying capacity

High stiffness

Accommodate axial displacement

Except for bearings with flanges on both the inner and outer rings.

Low friction

The open flange design 

Together with the roller end design and surface finish, promote lubricant film formation resulting in lower friction and higher axial load carrying capability.

Long service life

The logarithmic roller profile reduces edge stresses at the roller/raceway contact and sensitivity to misalignment and shaft deflection.

Enhanced operational reliability

The surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.

Separable and interchangeable

The separable components of cylindrical roller bearings are interchangeable. This facilitates mounting and dismounting, as well as maintenance inspections.